Injector.



PATENTED DB0. zo, 1904.

M. ERFURT,l INJEGTOR ArPLIoATIoN-HLBD Mu 2a. 1903.

' UNITED STATES Patented December 20, 1904.

PATENT OFFICE.

MAX ERFURT, OF STRAUPITZ, NEAR HIRSCHBERG, GERMANY.

INJECTOR.

SPECIFICATION forming part of Letters Patent No. 778,122., dated December 20, 1904.'

l Application filed May 28, 1903. Serial No. 159,211. l

To all whom, it 71am/ con/cern:

Be it known that I, MAX ERFURT, asubject of the Emperor of Germany, residing at Straupitz, near Hirschberg, Silesia, Germany, have invented certain new and useful Improvements in Injectors, of which the following is a specification.-

This invention has reference to improvements in injectors for mixing one or more liquids with steam. Y

The object of the invention is to provide means whereby the cross-section of the annular passage for one of the liquids can be adj usted during operation for the purpose of reducing or enhancing the percentage of the liquid introduced through this adjustable passage.

With'these objects in view the invention consists in the novel construction and arrangements of parts, as will be described with reference to the accompanying drawing which represents a sectional elevation of my invention.

Screwed into the injector-casing A, which is of ordinary construction, is a sleeve a with two integral threads a and a2. The threads a2 receive one end of the combining-tube b, and the threads a receive the threads upon they stufiing-box c. The other end of the combining-tube threads into the connecting-liange f andis packed against the same by a stuifing-boX g. A portion of the inner circumference of the combining-tube conforms to the outer circumference of the tapering portion of the nozzled, which acts as a passage forone of the liquids, so as to form between the two surfacessan annular passage@ for another liquid which enters through the port Z. By rotating the combining-tube one way or the other it'will screw farther into or out of the sleeve a and will correspondingly enlarge or reduce the cross-section of the annular passage e. For the purpose of,l getting a firm hold onthe combining-tube with a wrench a nut-shaped enlargement /L is formed thereon.'

i To prevent clogging of the adjustable passage, an annular strainer t' is rigidly secured Vmay be removed through the cleaningfopen- Screwed into the casing and communicating with the nozzle d and the combining-tube b is a compound steam-nozzle for injecting steam and the liquids, which enter through the annular passage e and nozzle CZ.

-I deem the foi-goin g explanation suiiiciently plain that the operation of the device will be readily understood by all conversant in such matters, the eXtreme simplicity rendering an elaborate description unnecessary.

' What I claim, and desire to secure by Letters Paten t, isi tube adjustable in said sleeve, an annular passage formed by a portion of the inner circumference of the combining-tube conforming to a portion of the outer circumference of the nozzle, an annular strainer secured to said combining-tube and adapted to slide on said nozzle, an opening in the casing for cleaning the strainer, and a stuffing-box packing said combining-tube against the injecting-casing, substantially as specified,

` In testimony that I claim the foregoing as my invention I have signed my name in presence of two subscribing witnesses.

MAX ERFURT.'

Witnesses: l I

A.- ScHELEAs, ALFR. MAUKscH. 

